Cohen will hit the road next month with nonprofit Movement Resource Group to advocate for a constitutional amendment to overturn the Supreme Court decisions that define current campaign finance laws.

Cohen told POLITICO he wants to spread the message that “money isn’t speech, and corporations aren’t people” by stamping it on the source of the problem: money.

Cohen will be traveling across the country to ice cream stores with a 14 feet long, six-feet wide stamping machine that will print slogans, such as “Not to be used for bribing politicians,” on dollar bills.

“This is an opportunity to make the will of the public known in a very visual and constant way,” he told POLITICO, adding that every bill stamped has the potential to reach 875 people.

Cohen, who has given about $150,000 to campaigns and party committees since 1986, said he is disappointed with President Barack Obama’s lack of focus on campaign finance reform. He gave $2,000 to Obama’s Senate campaign, but he hasn’t backed the president financially since.

“He’s made one tentative comment on a Reddit interview,” Cohen said. “That’s not what you call a strong endorsement.”

Despite his disappointment, Cohen said Obama is definitely the better of the two choices.

“I think Romney is absurd,” he said, specifically in response to the Republican presidential nominee’s comment that 47 percent of voters see themselves as “victims” and are dependent on the government.

“Clearly, this is a candidate by and for the 1 percent and the corporations,” Cohen added.

After selling Ben & Jerry’s, Cohen became active in politics and founded Business Leaders for Sensible Priorities, which pushed for shifting national budget priorities and cutting the defense budget. More recently, he became involved with the Occupy Wall Street movement.

“It became clear to me that Occupy’s list of grievances had their roots in money in politics,” he said, which inspired him to get involved with StampStampede.

“When money is free speech and when corporations are people, the only people that can be heard are those people who have a whole lot of money,” he said. “That needs to change.”